Fast Lane to Oldness

one of my co-workers is this fun, friendly girl who works in biz dev. i always knew she was young, but yesterday, i've never felt older:

hanna: "i'm planning my bday party, are you going to come?"
me: "fun! are you going to karaoke like we talked about?"
hanna: "no, i can't do karaoke at a bar anymore because i need a place that can accept people underage. some of my friends are not 21 yet."
me: (silence...)
me: (feeling sorry for myself...)
me: (starting to walk away...)
hanna: "hahaha. don't you like them young?"

cougar central baby.